Men who cannot develop sperm
6 Mar Men who don't have sperm in their semen have a condition called Your testicles are normal, but your body can't get them to make sperm.
20 Jun Men who are diagnosed as azoospermic -- infertile because of an absence of sperm in their ejaculate -- are more prone to developing cancer.
Men Unable to Produce Sperm Might Have Higher Risk of Cancer
BabyCenter - Security Warning
Semen Without Sperm: What Causes Azoospermia?
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